Oil bailer



F. M. K-DDER Aug; 5 1924.

OIL BAILER 192?. 2 Sheets-Sheet l -Fled March 16 hun ` F'. M. RIDDER OILBAILER 2 Sheets-Sheet 2 Filed Max-gh 1e,l 19.22'

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A had to the accompanying drawings, in

to the atmosphere at the upper end 2. It is Patented ug. 5, 1924.

NITED STATES FRED ivi. Kunnen, F WARREN, PENNSYLVANIA.

OIL IBAILER.

Application filed March 16, 1922. Serial No. 544,221.

To all whom t may concern:

Be itknown that I, FRED M. KIDDER, a citizen of the United States,residing at Warren, in the county of Warren and State of Pennsylvania,have invented new and useful Improvements in Oil Bailers, of which thefollowing is a specification.

This invention relates to oil bailers and has for its principalobjectthe construction of a .bailer valve which is seatless andtherefore free from the defect of being held open by gravel or sandcollecting on the seat asV ciprocatory valve, said valve having a flangeadapted to abutfagainst a shoulder on one endof said cage, said stembeing provided -with an arm 'engageable with ashoulder on the other sideof the `valve cage "for the purpose of limiting the movement ofsaidvalve in either direction. A'

The invention further consists in providing an efficient lconstructionand arrangement of parts and in the other matters hereinafter more fullydescribed, reference being which Figure l is 'a longitudinal view incross section'of my improved bailer showing the valve in open position.

Figure 2 is an underneath plan view of the same.

Figure 3 is a longitudinalview partly in cross section showing the valvein closed position. Y -Figure 4 is a cross sectional view taken alongthe line 4-4 of Figure 3,

Referring inl detail to the several views the Vnumeral'l represents thebody of the bailer which is cylindrical in form and open provided withthe bail handle?) Vriveted to the opposite sides of the cylindrical bodyat 4 by ,means of which the bailer is lowered into a well. Within thelower end of the bailer body is secured the ring 5 by means of the rivet6, said ring is provided at its lower end with a iange 7 forming an eX-tending shoulder 8 against which the lower end of the body 1 abuts andis also provided on that part of the eXterior surface which isoverlapped by the body with annular packing grooves 9.(

The ring 5 is interiorly threaded at 10 for the reception of the valvecage 11. The valve cage comprises a split cylindrical member havingportions of several diameters, that part of the smaller diameter, 12extending within the body 1 of the bailer and being provided with thelateral ports 13. The outer end of the valve cage 14, which is thelargest diameter, abuts against the outer surface of the flanged portion7 of the ring 5 while the portion 15 of intermediate diameter isthreaded and engages the threaded surface of the ring 5. Between itsends the bore of the valve cage is restricted by the partition 16, saidpartition being provided with a circular aperture 17 therethroughsurrounding the valve stem 18 and being cut away as at 27 forming radialarms 28 affording passages between said arms to permit the free entranceof liquid to the interior of the valve cage and bailer body.

I To the upper end of the valve stem 18 is secured the piston valve19'having the skirt portion 20 which is slidably fitted within the innerpart 12 ofthe valve cage in a position to close or open the ports 18 inthe act of reciprocation. The piston valve 19 is provided with theextending flange 21 which abuts the inner end 22 of the valve cagelimiting the downward movement of the piston valve and valve stem, andthe latter is provided at its lower end with a crowfoot or spider 23having radial arms 24 which abut against the outer end of the part 14and limiting the upward movement of the piston valve and valve stem.

A' strainer 25 is secured in any appropriate manner within the outer endof the valve cage and against the partition 16, said strainer beingconstructed with a circular aperture 26 which closely tits against thevalve stem 18;

In operation, the lbailer is lowered to the bottom of the well. Whilesuspended, gravity will cause the piston valve 19 to descend closing theports 13. The valve stem and crowfoot will then project in spacedlelation from the outer end 14 of the valve cage as shown in Figure 3.lVhen the bailer reaches the bottoni of the well, the crowfoot 23,coming in contact with said bottoni, will cause the valve stem to moveinwardly until the arms 24: of said ciowfoot abut against the outer end14 of the valve cage. `This will open the ports 13. Liquid from the wellwill then llowA through the strainer and through the passages 27 intothe valve cage and then through the ports 13 upwardly into the bailerbody which will be filled to as high a level as the liquid in the wellwill permit. j Upon withdrawing the bailer from Y of the well.

the. well by means vof the bail handle 3 the pistonvalve will againclose the ports 13 and the liquid within the bailer will be trapped, sothat it may be raised to the top To empty thev bailer it is merelynecessary to set it upon the ground upon lthe Yend of the crowfootQ,whereupon thev valve 'stem will be l forced inwardly and the valve portsopened permitting theliquid to lowI back frointhe bailer through th samechannels by vwhich it entered.V Y Y VIt will.y be obvious from theconstruction herein described that I have provided a seatless valve forthe bailer and'one in which it is impossible that sand or gravel'Vshould interpose itself between the fixed and moving ports of the valve,soas `to permit the Vlatter from closing. By the location of the ports13 above the lowest part of the in- .ter'ior ofthe bailer-'body theywill not be interfered with by the gradual accummula-V tion of sludge orotherjfine solid .material which happens to pass through the strainer.By liavingtlie valve cage detachably enf gageable with the ring it ispossible to readily remove the valve and 'valve cage from the bailerbody should it be necessary at any time to have access to them for thepurpose of making repairs. v

Having described my invention what I cla-iin as new and desire to secureby Let-V 1. A gravity-operated bailer comprising a :hollow body, aVvalve cage detachably'se'- curedin thelower end of said hollow body',having al port communicating Vwith space outside said body and a valvemounted in said valve cage for controlling said port and having anactuating stemV projecting beyond the lower end of said body. '2,'Afgravity-operated bailerl comprising a hollow body, a valvecage'detachably secured in the lower end of said hollow body,

havingV a port communicating with space outside said Vvbody andra valvemounted in the lower end of said valve cage to limitY said valve cagefor controlling saidport and having an j actuating stem projectingbeyond the lower end of said body, fand a lateral arm on saidl stein,engageable with the-upward movement-of said valve.

3. A gravity operated bailer comprising outer endsY of said valve cageVto limit the Y Y ieciprocatory `movement of said .valve ineitherfdirection. v j

4. A gravity operated bailer comprising a hollow body, a valvefcagedetachably secured in the lowerA end:1 of, said body, hav

ing fa cylindrical portion thereofeXtendjng inwardly into said hollowbody and spaced from the walls thereof, said inwardly eat-V tendingportion being provided with alat-V eral port, a transverse partition insaid valve cage having a. 'central aperture, said port and aperturecommunicating with'space out.- side said hollow body, areciprocatoryfvalve controlling said port having an actuating stemprojecting through said aperture an beyond the'lower Vend of said lbodyand means on said valve*and'stem'adapted. respectivelyV to* engage :theinner and outer ends of said*V .valve cage to limit `the reciproeatory.movement Vof 'said valve in either dil rection.' f j i f A 5. A gravityoperated bail-er `comprising ahollow body, a valve'cage detachabl-ysecured in the lower end ofsaid'body, have ingV a cylindrical portionthereof extending inwardly intosaid'hollow body andsp-aced from thewalls thereof, .saidiiiwardlyl eX- tending portion being Aprovidedv withlateral ports arranged at a higher level than the plane of thev innersurface vof the bottom of said hollow` body, a Vtransversepartitionwithin said valve cage'having a eentralaperture, said ports and saidaperturecommunieating with space outside said' hollowbody, aVreciproca-tory valve having a cylindrical portion controllingsaidports, and having 'an actuating steinV projecting through saidaperture and beyond the lower endbf'said adapted respectively toengagethe inner and body, and means on said valveandjstem outer ends of saidvalve cagetorlimitfthe reciprocatory ni'oveine'ntl ofV said valve kineither directiorrf 6. A grav'Yity-operated'bailer Vcomprising a hollowbody, a valve cage detachably secnredin]4 the lower endofsaid*bodyfhav*V Ving a cylindrical portion thereof'extending inwardly'intosaidhollow body andv spaced from the Vwalls thereof,v said inwardlyIeX- tending portion being provided withlateral ports arranged at ahigher level thanthe plane of the inner surfaceof thebottom of saidhollow body, a transverse partition adapted respectively to engage theinner and within said valve cage having a central aperouter ends of saidvalve cage to limit the ture, said ports and said aperturecommunireciprocatory movement of said valve in eating with space outsidesaid hollow body,' either direction. l5 a strainer arranged outside ofsaid partition In testimony whereof I have hereunto set and screeningsaid aperture a reciprocatory my hand in presence of two subscribingvalve having a cyllndrlcal portion controlwitnesses.

ling said ports and provided with an actuat- FRED M. KIDDER. ing stemprojecting through said aperture Witnesses: 10 and screen and beyond thelower end of said L. H. BRooKHART,

body and means on said valve and stem W. F. BENNETT.

